|This character exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Doctor Ivanna Robotina is a character that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. She was the female version of Dr. Ivo Robotnik from the Luna Zone and an evil sorceress who monsterizes her victims, unlike Robotnik, who roboticizes his victims.
Ivanna came to Mobius Prime and tried to monsterize Sonic. Though she failed to do so, no thanks to Sally Moon who came from her dimension, she still kept fighting to stay in Mobius Prime but was brought down by one of Tuxedo Knux's roses. She was then brought back to the Luna Zone by the two heroes.
- Like how the other residents of the Luna Zone are parodies of characters from the manga series Sailor Moon, it's possible that Ivanna is a parody of Queen Beryl, the initial antagonist from the series.
- Ivanna is the only known female counterpart of Dr. Robotnik.